4. Optics: measuring and testing
  5. Fiducial instruments
  6. Reticle lies outside viewing path

Per Montelin

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Optical element of a parallax free sight

Optics: measuring and testing – Fiducial instruments – Reticle lies outside viewing path
Patent

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Optical sight arrangement for a firearm

Geometrical instruments – Straight-line light ray type – Multisight line
Patent

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Profile ID: LFUS-PAI-P-1142657

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